CN210052164U - Agricultural implement soil-contacting component bionic curved surface structure based on reverse engineering technology - Google Patents
Agricultural implement soil-contacting component bionic curved surface structure based on reverse engineering technology Download PDFInfo
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- CN210052164U CN210052164U CN201821799598.5U CN201821799598U CN210052164U CN 210052164 U CN210052164 U CN 210052164U CN 201821799598 U CN201821799598 U CN 201821799598U CN 210052164 U CN210052164 U CN 210052164U
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- 239000011664 nicotinic acid Substances 0.000 title claims abstract description 40
- 238000005516 engineering process Methods 0.000 title abstract description 18
- 239000002689 soil Substances 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 6
- 238000009313 farming Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 2
- 241000269333 Caudata Species 0.000 description 4
- 241001356458 Gonorynchus greyi Species 0.000 description 4
- 241000270322 Lepidosauria Species 0.000 description 4
- 235000001968 nicotinic acid Nutrition 0.000 description 4
- 238000012938 design process Methods 0.000 description 3
- 238000003971 tillage Methods 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 210000002615 epidermis Anatomy 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 208000025747 Rheumatic disease Diseases 0.000 description 1
- 241000220156 Saxifraga Species 0.000 description 1
- 241000624585 Scomberesox saurus Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000552 rheumatic effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to an agricultural implement touches bionical curved surface structure of native part based on reverse engineering technique belongs to agricultural machinery technical field. The utility model adopts five curve fitting equations to fit a curved surface, one end of the curved surface is cut by taking a section of circular arc as a cross section, and the other end of the curved surface is smoothly connected; the utility model discloses the bionical curved surface that bionical curved surface structural design goes out touches native part traditional curved surface relatively and touches native part design theoretical basis by force, and practical function is good, and is less to the destruction of earth's surface soil during its farming, reduces the soil condition that hardens. Therefore, the bionic curved surface soil-contacting component adopting the bionic curved surface structural design is combined with the advanced machining technology of China, mass production can be realized, the problem of low operation speed and large working resistance is greatly reduced, and the service life of the agricultural implement is prolonged.
Description
Technical Field
The utility model relates to an agricultural implement touches bionical curved surface structure of native part based on reverse engineering technique mainly utilizes reverse engineering technique and bionical theory to design out bionical curved surface structure, and this structure can use during agricultural implement touches native part, belongs to agricultural machinery technical field.
Background
In the modern agricultural production process, cultivation is one of the most energy consuming links in agricultural production, so that the consumption of agricultural implements, manpower and the like needs to be reduced by optimizing the cultivation process. The use of agricultural implements is the most common in farming, whereas curved plows are used relatively more often in the large number of implement-contacting parts. The main applications of the plough are: irrigation canals, pond works, ploughing, etc. In recent years, China has caused a great deal of sandy-dusty weather because the soil layer of the arid farmland is too loose and arid, and the phenomenon is that the soil is ploughed by traditional ploughs year after year, so that the entry of the rheumatic water erosion of the soil is uncovered, the ground surface is exposed, the evaporation surface is enlarged, and the soil moisture loss is serious. In order to preserve soil moisture, people have to adopt a plurality of operations such as raking, land leveling, pressing and the like; in order to facilitate sowing, people have to carry out rotary tillage and soil preparation. Such "fine-tillage and fine-farming" has become a heavy burden for farmers. Moreover, when many farmers use the plough to cultivate, the problems of large working resistance of the plough wall curved surface, low operation speed, serious damage to the soil on the ground surface and the like also trouble many farmers. The machine can work for many times, which not only destroys the soil structure, but also increases the operation cost, and causes the bad fruit that the yield is increased and the income is not increased. In order to solve the problem of soil damage, designers and scholars make corresponding researches on the design of the plough body curved surface, but the designers and the scholars are always puzzled by the design problem of the plough body curved surface in the redesigning process.
The bionic structure design is to convert some advantages contained in the living things into parameters and structural characteristics of mechanical structures, thereby realizing the expansion of the geometrical structures from the intrinsic biological characteristics to the extrinsic ones in the engineering field. Aiming at the problems, the bionic curved surface structure is designed by adopting a reverse engineering technology according to the bionic principle. The reverse engineering technology is adopted, so that the problem of manufacturing the curved surface of the plough body in the redesigning process of numerous designers and scholars can be effectively solved; the problems of fine tillage and fine cropping of numerous farmers are solved more effectively, and the problems of soil hardening, serious abrasion of plough walls and the like are prevented. The bionic curved surface can also effectively reduce the problems of large soil penetration resistance of the soil contact part of the agricultural implement and the like.
Reverse Engineering (RE) is a description of the product design process. In the general concept of engineering staff, the product design process is a process from scratch: design personnel firstly think of the appearance, performance, approximate technical parameters and the like of the product, then establish a three-dimensional digital model of the product by utilizing the CAD technology, finally transfer the model into a manufacturing process and finish the whole design and manufacturing period of the product. Such a product design process we may refer to as "forward design". Reverse engineering is a "from present to absent" process. In short, reverse engineering is a process of pushing back design data (including design drawings or digital models) of a product based on an existing product model.
Bionics is an ancient and young discipline. People study the principles of the structure and function of the organism, and according to the principles, the novel equipment, tools and technologies are put into practical use, and the advanced technology suitable for production, study and life is created.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the utility model provides a bionical curved surface structure of agricultural implement part that touches soil based on reverse engineering technique for it is big to overcome traditional agricultural implement curved surface and touch soil part working resistance, and the difficult energy consumption of breaking ground is high, destroys big problem to earth's surface soil.
The utility model discloses in, touch the comparatively serious essential element of wearing and tearing when soil part is as the farming, its bionic structure design is expanded on the basis to desert animal research and analysis, and sand fish lizard breaks the soil and bores native ability reinforce in the desert animal, when the speed with 300mm/s in sand quick travel again, epidermis and soil produce serious friction, but sand fish lizard epidermis does not receive serious damage. The Exendin epidermum of the Atlantic saury evolves to form an excellent geometric structure and excellent biomechanical property in the long-time contact process with the soil, the soil breaking capacity is high, the soil friction resistance is small, and a bionic design basis is provided for optimization of the geometric shape of a soil contact part of an agricultural implement.
The utility model discloses it is big to earth's surface soil destructive power to solve the agricultural implement and touch the soil part surface, influences farming production when serious, and the big technical problem of the soil working resistance that hardens designs a agricultural implement and touches the bionic curved surface structure of soil part based on reverse engineering technique, and the agricultural implement of installing the bionic curved surface structure touches the soil part and can the serious soil resistance cultivation that hardens, inserts soil ability reinforce, and to the destructive power greatly reduced of earth's surface soil.
The utility model adopts the technical scheme that: a bionic curved surface structure of an agricultural implement soil-contacting component based on a reverse engineering technology is characterized in that the bionic curved surface structure is formed by fitting a curved surface by a five-curve fitting equation, one end of the curved surface is cut by taking a section of circular arc as a cross section, and the other end of the curved surface is smoothly connected; the five curve fitting equations are respectively:
y
1＝0.0003943x
1 4+0.05131x
1 3+2.327x
1 2+45.93x
1+364.9；
y
2＝0.0008876x
2 4+0.09806x
2 3+3.918x
2 2+68.458x
2+471.1；
y
3＝0.0001187x
3 4+0.019x
3 3+0.9285x
3 2+19.14x
3+171.5；
y
4＝0.0003826x
4 4+0.04088x
4 3+0.1562x
4 2+26.38x
4+195.6；
y
5＝0.009708x
5 4+0.4157x
5 3+8.885x
5 2+495.55x
5+446.1。
further, the five curve fitting equations satisfy the following conditions:
x
1the value range of (A) is-32 to-16 mm;
x
2the value range of (A) is-32 to-16 mm;
x
3the value range of (A) is-32 to-14 mm;
x
4the value range of (A) is-32 to-14 mm;
x
5the value range of (A) is-30 to-12 mm;
wherein x
1、x
2、x
3、x
4、x
5Are all expressed as longitudinal section parameters of the curved surface.
Further, the radius R of the circular arc ranges from 60mm to 100mm, and the corresponding central angle of the circular arc ranges from 90 degrees to 120 degrees.
Furthermore, the widths of the curves fitted by the five curve fitting equations are the same, wherein the width range is 8-12 mm.
Furthermore, the five-curve fitting equation of the bionic curved surface structure is obtained by taking the surface form of the back of the Saxifraga saundersiana as a prototype to obtain point cloud and extract a plurality of back curves, selecting five parallel equal-width curves on the back and fitting a curve track as an equation.
The working principle of the bionic curved surface structure of the agricultural implement soil-contacting component based on the reverse engineering technology is as follows:
the utility model is based on the reverse engineering technology and the bionics theory, the surface shape of the back of the sand fish lizard is taken as a prototype to obtain point cloud and extract a plurality of back curves, five parallel equal-width curves on the back are selected, and the curve track is fitted into an equation;
and finally, taking a section of circular arc as a cross section, cutting and smoothly connecting the five equation-fitted curved surfaces, and combining to complete the construction of the bionic curved surface structure.
Further, the fitting equations of the selected five curves are respectively as follows:
y
1＝0.0003943x
1 4+0.05131x
1 3+2.327x
1 2+45.93x
1+364.9；
y
2＝0.0008876x
2 4+0.09806x
2 3+3.918x
2 2+68.458x
2+471.1；
y
3＝0.0001187x
3 4+0.019x
3 3+0.9285x
3 2+19.14x
3+171.5；
y
4＝0.0003826x
4 4+0.04088x
4 3+0.1562x
4 2+26.38x
4+195.6；
y
5＝0.009708x
5 4+0.4157x
5 3+8.885x
5 2+495.55x
5+446.1。
further, the bionic curved surface structure can be used for scanning a point cloud image from a salamander back curved surface by using imageware software, selecting a curve with the highest back from the whole salamander back point cloud image, taking the highest curve as a middle line, expanding the curve by 10mm towards two sides to obtain a second curve and a third curve, similarly, expanding the curve by 10mm towards the left side and the right side again to obtain a fourth curve and a fifth curve, deleting noise points, and storing the point cloud image; respectively obtaining coordinate values of each point in the five curve point cloud pictures by using AutoCAD software based on each curve; and fitting points on each curve into an equation by using MATLAB software, and expressing five curve fitting equations.
Further, the five curve fitting equations satisfy the following conditions:
x
1the value range of (A) is-32 to-16 mm;
x
2the value range of (A) is-32 to-16 mm;
x
3the value range of (A) is-32 to-14 mm;
x
4the value range of (A) is-32 to-14 mm;
x
5the value range of (A) is-30 to-12 mm;
wherein x
1、x
2、x
3、x
4、x
5Are all expressed as longitudinal section parameters of the curved surface.
Further, the radius R of the circular arc ranges from 60mm to 100mm, and the corresponding central angle of the circular arc ranges from 90 degrees to 120 degrees.
Furthermore, the widths of the curves fitted by the five curve fitting equations are the same, wherein the width range is 8-12 mm.
The utility model has the advantages that: the utility model discloses to the not enough of traditional agricultural implement curved surface touching native part, according to reverse engineering technique and bionics theoretical design bionic curved surface structure. Compared with the traditional soil contact part, the soil contact part with the bionic curved surface has the advantages that the soil entering speed of the soil contact part with the bionic curved surface is improved compared with that of the traditional soil contact part with the curved surface, the wear resistance is improved, the working resistance is reduced when the soil is in contact with the curved surface, and the service life of the agricultural implement is prolonged; in addition, the bionic curved surface soil contacting component designed by the bionic curved surface structure has strong theoretical basis compared with the traditional curved surface soil contacting component, good practical effect, less damage to surface soil during cultivation, and reduced soil hardening condition. Therefore, the bionic curved surface soil-contacting component adopting the bionic curved surface structural design is combined with the advanced machining technology of China, mass production can be realized, the problem of low operation speed and large working resistance is greatly reduced, and the service life of the agricultural implement is prolonged.
Drawings
FIG. 1 is an isometric view of a bionic curved surface of the present invention;
FIG. 2 is a front view of the bionic curved surface of the present invention;
FIG. 3 is a schematic view of a plough body of the soil-contacting component for installing a bionic curved surface.
Reference numbers in fig. 1-3: 1-plough base, 2-plough wall and 3-plough share. The plow body of the main working soil-touching part is composed of a plow base 1, a plow wall 2 and a plow share 3.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example 1: as shown in fig. 1-3, a bionic curved surface structure of an agricultural implement soil-contacting component based on a reverse engineering technology, wherein the bionic curved surface structure is formed by fitting a curved surface by a five-curve fitting equation, one end of the curved surface is cut by taking a section of circular arc as a cross section, and the other end of the curved surface is smoothly connected; the five curve fitting equations are respectively:
y
1＝0.0003943x
1 4+0.05131x
1 3+2.327x
1 2+45.93x
1+364.9；
y
2＝0.0008876x
2 4+0.09806x
2 3+3.918x
2 2+68.458x
2+471.1；
y
3＝0.0001187x
3 4+0.019x
3 3+0.9285x
3 2+19.14x
3+171.5；
y
4＝0.0003826x
4 4+0.04088x
4 3+0.1562x
4 2+26.38x
4+195.6；
y
5＝0.009708x
5 4+0.4157x
5 3+8.885x
5 2+495.55x
5+446.1。
further, the five curve fitting equations satisfy the following conditions:
x
1the value range of (A) is-32 to-16 mm (namely, the end point value is taken in the range, and any value in the end point range can be taken);
x
2the value range of (A) is-32 to-16 mm (namely, the end point value is taken in the range, and any value in the end point range can be taken);
x
3the value range of (A) is-32 to-14 mm (namely, the end point value is taken in the range, and any value in the end point range can be taken);
x
4the value range of (A) is-32 to-14 mm (namely, the end point value is taken in the range, and any value in the end point range can be taken);
x
5the value range of (A) is-30 to-12 mm (namely, the end point value is taken in the range, and any value in the end point range can be taken);
wherein x
1、x
2、x
3、x
4、x
5Are all expressed as longitudinal section parameters of the curved surface.
Further, the radius R of the circular arc ranges from 80mm, and the corresponding central angle of the circular arc is 105 degrees.
Further, the curves fitted by the five curve fitting equations are all the same in width, wherein the width ranges from 10 mm.
The working principle of the bionic curved surface structure of the agricultural implement soil-contacting component based on the reverse engineering technology is as follows:
the utility model is based on the reverse engineering technology and the bionics theory, the surface shape of the back of the sand fish lizard is taken as a prototype to obtain point cloud and extract a plurality of back curves, five parallel equal-width curves on the back are selected, and the curve track is fitted into an equation;
and finally, taking a section of circular arc as a cross section, cutting and smoothly connecting the five equation-fitted curved surfaces, and combining to complete the construction of the bionic curved surface structure.
Further, the fitting equations of the selected five curves are respectively as follows:
y
1＝0.0003943x
1 4+0.05131x
1 3+2.327x
1 2+45.93x
1+364.9；
y
2＝0.0008876x
2 4+0.09806x
2 3+3.918x
2 2+68.458x
2+471.1；
y
3＝0.0001187x
3 4+0.019x
3 3+0.9285x
3 2+19.14x
3+171.5；
y
4＝0.0003826x
4 4+0.04088x
4 3+0.1562x
4 2+26.38x
4+195.6；
y
5＝0.009708x
5 4+0.4157x
5 3+8.885x
5 2+495.55x
5+446.1。
further, the bionic curved surface structure can be used for scanning a point cloud image from a salamander back curved surface by using imageware software, selecting a curve with the highest back from the whole salamander back point cloud image, taking the highest curve as a middle line, expanding the curve by 10mm towards two sides to obtain a second curve and a third curve, similarly, expanding the curve by 10mm towards the left side and the right side again to obtain a fourth curve and a fifth curve, deleting noise points, and storing the point cloud image; respectively obtaining coordinate values of each point in the five curve point cloud pictures by using AutoCAD software based on each curve; and fitting points on each curve into an equation by using MATLAB software, and expressing five curve fitting equations.
Further, the five curve fitting equations satisfy the following conditions:
x
1the value range of (A) is-32 to-16 mm (namely, the end point value is taken in the range, and any value in the end point range can be taken);
x
2the value range of (A) is-32 to-16 mm (namely, the end point value is taken in the range, and any value in the end point range can be taken);
x
3the value range of (A) is-32 to-14 mm (namely, the end point value is taken in the range, and any value in the end point range can be taken);
x
4the value range of (A) is-32 to-14 mm (namely, the end point value is taken in the range, and any value in the end point range can be taken);
x
5the value range of (A) is-30 to-12 mm (namely, the end point value is taken in the range, and any value in the end point range can be taken);
wherein x
1、x
2、x
3、x
4、x
5Are all expressed as longitudinal section parameters of the curved surface.
Further, the radius R of the circular arc ranges from 80mm, and the corresponding central angle of the circular arc is 105 degrees.
Further, the curves fitted by the five curve fitting equations are all the same in width, wherein the width ranges from 10 mm.
A bionic curved surface structure of an agricultural implement soil-contacting component based on a reverse engineering technology is applied to the agricultural implement soil-contacting component by different times of equal-proportion amplification according to corresponding application requirements, for example, the bionic curved surface structure is arranged on a furrow plough as a plough share 3, and forms a plough body with a plough support 1) and a plough wall 2), as shown in figure 3;
example 2: as shown in fig. 1 to 3, a bionic curved surface structure of an agricultural implement soil-contacting component based on a reverse engineering technology is basically the same as that of embodiment 1, and the difference is as follows:
further, the radius R of the circular arc ranges from 60mm, and the corresponding central angle of the circular arc is 90 degrees.
Further, the curves fitted by the five curve fitting equations are all the same in width, wherein the width range is 8 mm.
Example 3: as shown in fig. 1 to 3, a bionic curved surface structure of an agricultural implement soil-contacting component based on a reverse engineering technology is basically the same as that of embodiment 1, and the difference is as follows:
further, the radius R of the circular arc ranges from 100mm, and the corresponding central angle of the circular arc is 120 degrees.
Further, the curves fitted by the five curve fitting equations are all the same width as the curves, wherein the width range is 12 mm.
The curved surface of above-mentioned going out according to actual fitting, longitudinal section length is reasonable, and the cross section width is reasonable, the utility model discloses a bionical curved surface structure touches native part as bionical curved surface share and is applied to when actual that it inserts soil ability reinforce to touch native part, and the working resistance is little to the destruction degree of plough body curved surface to soil has been reduced.
While the present invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (1)
1. The utility model provides an agricultural implement soil-contacting component bionic curved surface structure based on reverse engineering technique which characterized in that: the bionic curved surface structure is formed by fitting a curved surface by a five-curve fitting equation, wherein one end of the curved surface is cut by taking a section of circular arc as a cross section, and the other end of the curved surface is smoothly connected; the five curve fitting equations are respectively:
y
1＝0.0003943x
1 4+0.05131x
1 3+2.327x
1 2+45.93x
1+364.9；
y
2＝0.0008876x
2 4+0.09806x
2 3+3.918x
2 2+68.458x
2+471.1；
y
3＝0.0001187x
3 4+0.019x
3 3+0.9285x
3 2+19.14x
3+171.5；
y
4＝0.0003826x
4 4+0.04088x
4 3+0.1562x
4 2+26.38x
4+195.6；
y
5＝0.009708x
5 4+0.4157x
5 3+8.885x
5 2+495.55x
5+446.1；
the five curve fitting equations satisfy the following conditions:
x
1the value range of (A) is-32 to-16 mm;
x
2the value range of (A) is-32 to-16 mm;
x
3the value range of (A) is-32 to-14 mm;
x
4the value range of (A) is-32 to-14 mm;
x
5the value range of (A) is-30 to-12 mm;
wherein x
1、x
2、x
3、x
4、x
5Are all expressed as longitudinal section parameters of the curved surface;
the radius R of the arc ranges from 60mm to 100mm, and the corresponding central angle of the arc ranges from 90 degrees to 120 degrees;
the widths of the curves fitted by the five curve fitting equations are the same, wherein the width range is 8-12 mm; the bionic curved surface structure is applied to a soil contact part of an agricultural implement by different magnification in equal proportion according to corresponding application requirements, is arranged on a furrow plough to be used as a plough share (3), and forms a plough body together with a plough support (1) and a plough wall (2).
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|---|---|---|---|
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821799598.5U CN210052164U (en) | 2018-11-02 | 2018-11-02 | Agricultural implement soil-contacting component bionic curved surface structure based on reverse engineering technology |
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| Publication Number | Publication Date |
|---|---|
| CN210052164U true CN210052164U (en) | 2020-02-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109308401A (en) * | 2018-11-02 | 2019-02-05 | 昆明理工大学 | A kind of agricultural machinery and implement soil-engaging component bionic curved surface structure and its construction method based on reverse Engineering Technology |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109308401A (en) * | 2018-11-02 | 2019-02-05 | 昆明理工大学 | A kind of agricultural machinery and implement soil-engaging component bionic curved surface structure and its construction method based on reverse Engineering Technology |
| CN109308401B (en) * | 2018-11-02 | 2024-07-26 | 昆明理工大学 | Agricultural implement soil contact part bionic curved surface structure based on reverse engineering technology and construction method thereof |
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